package com.github.niefy.modules.sys.oauth2;
import com.github.niefy.modules.sys.entity.SysUserEntity;
import com.github.niefy.modules.sys.entity.SysUserTokenEntity;
import com.github.niefy.modules.sys.service.ShiroService;
import org.apache.shiro.authc.*;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.util.Set;
/**
 * 认证
 *
 * @author Mark sunlightcs@gmail.com
 */
@Component
public class OAuth2Realm extends AuthorizingRealm {
  @Autowired
  private ShiroService shiroService;
  @Override
  public boolean supports(AuthenticationToken token) {
    return token instanceof OAuth2Token;
  }
  /**
   * 授权(验证权限时调用)
   */
  @Override
  protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
    SysUserEntity user = (SysUserEntity) principals.getPrimaryPrincipal();
    Long userId = user.getUserId();
    //用户权限列表
    Set<String> permsSet = shiroService.getUserPermissions(userId);
    SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
    info.setStringPermissions(permsSet);
    return info;
  }
  /**
   * 认证(登录时调用)
   */
  @Override
  protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
    String accessToken = (String) token.getPrincipal();
    //根据accessToken，查询用户信息
    SysUserTokenEntity tokenEntity = shiroService.queryByToken(accessToken);
    //token失效
    if (tokenEntity == null || tokenEntity.getExpireTime().getTime() < System.currentTimeMillis()) {
      throw new IncorrectCredentialsException("token失效，请重新登录");
    }
    //查询用户信息
    SysUserEntity user = shiroService.queryUser(tokenEntity.getUserId());
    //账号锁定
    if (user.getStatus() == 0) {
      throw new LockedAccountException("账号已被锁定,请联系管理员");
    }
    return new SimpleAuthenticationInfo(user, accessToken, getName());
  }
}
